主触头

该电路将实际地铁供电系统简化后，引入麦也尔（Mayr）电弧模型作为直流断路器主触头，在Matlab平台上对传统直流断路器和新型直流断路器进行仿真研究。

After simplifying subway power supply system , the circuit introduce Mayr arc as the Main contact of the DC breaker , do research both on the traditional DC breaker and the new DC breaker based on the matlab platform .

罩式退火炉主触头结构的改进

The structure improvment of main contact tip of top hat annealing furnace

接触器主触头熔焊故障的保护电路设计

Design of Protecting Circuit for Melt-Weld Failure of Main Noddle on Contactor

介绍了在生产中励磁开关主触头烧蚀的解决方法。

This paper presents solution of main contact ablation of a excitation switch in production .

主要对均压环、弧触头、主触头、喷口等结构进行了优化及分析，分别进行了讨论。

The structures of the electric field shielding ring , arc contact , main contact and nozzle etc.

采用传统粉末冶金工艺研制电器开关主触头用铜石墨10电触头材料。

The study on copper graphite 10 electric contact material is described by traditional P / M process .

此时间为从跳闸线圈受电到主触头电弧电流开断为止的总时间。

This is the total time from energizing the trip coil until the interruption of current on the primary arcing contacts .

断路器具有一种新颖的手动操作机构，能确保DW50断路器在主触头闭合时不会再储能，而在主触头断开时能正常储能。

The manual operation mechanism ensures that the circuit breaker can not store energy when the main contacts have closed , and can store energy as normal with the main contacts open .

当断路器在（合闸-分闸）动作过程中，弧触头先合后分，而主触头后合先分。因此，新型大电流真空断路器开断时主、弧触头之间必然存在电流转移过程。

During the closing / opening of vacuum circuit breaker , arc contact is first closed and post breaking , however , main contact is post closed and first breaking . So there must be the current transfer process .

在此基础上分别对喷口，最大开距，主触头结构，主、弧触头间结构的配合等参数的改变对断口间电场的影响，进行了讨论。

On the basis above , influences of the parameter changes in nozzle , maximum openning distance , main contact structure , coordination between main contact and arcing one , et al on the electric field between contacts are discussed .

为了提高测试精度，运用模糊控制策略，解决机构变化过程中初压力、终压力及主辅触头反力叠加引起反力突变的测试难题。

By using fuzzy control , the precision of testing was improved .

主空压机防主触头熔焊故障电路的设计

A Circuit Design for Preventing Main Air Compressor Breakdown on Main Contact Metal Meltdown